Docker: Switch to openjdk:14 as the base image.

Change-Id: Iff9a94d8069099ee38051c9f89b4f20cbf713bcc
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 6a842c3..72b8b10 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -67,9 +67,8 @@
 quarkus.container-image.name = mulkcms2
 quarkus.container-image.registry = docker.benkard.de
 
-#quarkus.jib.base-jvm-image = adoptopenjdk:14-jre-hotspot
+quarkus.jib.base-jvm-image = openjdk:14
 #quarkus.jib.jvm-arguments = -XX:+UnlockExperimentalVMOptions,-XX:+UseShenandoahGC,-XX:ShenandoahGCHeuristics=compact
-quarkus.jib.base-jvm-image = adoptopenjdk:14-jre-openj9
 
 quarkus.native.container-runtime = docker